But this series is based on WoW isn't t? and no I never played WoW including some other members here in this site.
So to back this up here are some problems that needs fixing:
-When the game starts a huge pile of texts starts exploding in the screen, why not just place all of them in the Quest Menu along with the changelogs, credits, map updates, and etc. Its much more professional looking
-All team 1 units(Except Akama) who are standing in the pathway to illidan will die why not just do a trigger that will force all units to go inside the boss room
-Even though I tried to finish the game and succeeded I still don't like the idea of complicated measures such as my Army has no potential in crowd control and a steady clash of spells and durability, I mean the Beastmaster and Tauren Chieftain has exactly the same abilities (Finger of Death and some buff), Shaman has only 1 spell a mass effect bloodlust and requires huge amount of mana(So I end up using the spell in Phase 3), and my Int Hero is useless its only spell is good at taking out spawns
-Speaking of spawns you keep drudging out too much of them it causes the map to lag in some point:
Just make a trigger that only focuses in creep count in other words trigger summon can only spawn 10 lesser voidwalkers, if one of the voidwalkers is killed, create a voidwalker for 10 seconds.
-Terrain is totally lacking, I know all boss fights needs dramatic amount of space just for a close fight to happen but no were in a verge of improvement, instead of just a plain sight of terrain make up a visual for it like a hell-like temple of similar outlook of the 'Doom' Franchise and all.
You can be better at this, use the 'QWRRTY' hotkey method when it comes to spells in such condition because right now, player's will have bad time in tapping spell hotkeys and such. Give all units involved a special role of abilities and characteristics, and lastly a pin pointer or proper guide in how to kill the boss and all, may it be in Quest Menu or a '-'command.